CN104087135A - Spraying powder used for household appliance evaporator and preparation method thereof - Google Patents
Spraying powder used for household appliance evaporator and preparation method thereof Download PDFInfo
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- CN104087135A CN104087135A CN201410314861.7A CN201410314861A CN104087135A CN 104087135 A CN104087135 A CN 104087135A CN 201410314861 A CN201410314861 A CN 201410314861A CN 104087135 A CN104087135 A CN 104087135A
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- dusty spray
- vibrin
- polyester resin
- unsaturated polyester
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Abstract
The invention discloses spraying powder used for a household appliance evaporator and a preparation method thereof. The spraying powder comprises the following components in percentage by weight: 35%-45% of polyester resin, 35%-45% of epoxy resin, 0.2%-1% of charging additive, 1.2%-1.8% of flowable agent, 0.2%-1.1% of loose agent and filler. The preparation method comprises the following steps of: (1), uniformly mixing the components, and extruding and tableting under the condition of 135-155 DEG C to obtain tablets; (2), crushing the tablets and preparing powder with grain size of 10-80 mu m by cyclone separation. By improving components and content thereof, the mobility, friability and physical impact performance of the spraying powder disclosed by the invention are improved, the powder applying rate is improved and the spraying thickness is reduced.
Description
Technical field
The present invention relates to a kind of dusty spray for family's electrical evaporator and preparation method thereof.
Background technology
Family's electrical evaporator is building block important in household refrigerating appliance, and the condensation of low temperature " liquid " body, by vaporizer, carries out heat exchange with extraneous air, and " gas " changes heat absorption, reaches the effect of refrigeration.Family's electrical evaporator aborning, needs effects on surface to spray, to realize good function.
In prior art, for the powder of family's electrical evaporator spraying coating process, be mainly to take the dusty spray that vibrin and epoxy resin is main component.But, the problem of ubiquity in spraying process " spraying dead angle ", that is: after normal spraying, inner corner trim part (steel wire weld seam) is drain spray easily.The appearance of drain spray phenomenon increases the ratio of doing over again in vaporizer preparation process.When twice spraying of a workpiece, need twice man-hour, twice water power, tooling cost is multiplied.
Manufacturer is for fear of the appearance of the problem at " spraying dead angle ", and general employing increases the method for coating thickness.But the blocked up meeting of surface spraying causes the increase by powder amount, the problem that has equally labor force and cost to increase, and on the other hand, the problem such as also there will be coatings layer cracking and come off.
For the product of scheming layer cracking and coming off, need again to spray after de-moulding, that is: carry out secondary spraying.De-the moulding of general employing sulfuric acid before de-method of moulding, because environmental issue is progressively eliminated.And other de-molding process costs are very high, add and repeatedly spray cost, make general producer after secondary spraying is defective, directly by product rejection, form the waste of resource and cost.
In order addressing the above problem, in prior art, also to have and attempt powder composition to carry out improved research.But improved method is confined to increase main material (vibrin and epoxy resin) substantially, consumption improves powder utilization.Yet the powder after improvement is effect not obvious in actual use, powder utilization is low, exist equally quality product low, do over again often, product rejection amount is many and increase into the problem of grading.
Summary of the invention
Technical problem to be solved by this invention is that to overcome in prior art household electrical appliances evaporator surface dusty spray powder utilization low, cause drain spray or secondary spraying, when spraying effect is not good, bring the defect of the waste of manpower and resource, dusty spray and preparation method thereof for a kind of electrical evaporator is provided, dusty spray of the present invention by improving of composition and content thereof the mobility of powder, free-running property and physical impact performance, the powder utilization that has improved powder, has reduced coating thickness.
One of object of the present invention is, a kind of dusty spray for family's electrical evaporator is provided, described dusty spray comprises following composition: vibrin 35%-45%, epoxy resin 35%-45%, growth agent 0.2%-1%, flowing agent 1.2%-1.8%, loose fluffy powder 0.2%-1.1% and filler, described per-cent is the weight percent that accounts for dusty spray.
Below, for technique scheme, be described further:
In the present invention, described vibrin is the vibrin of this area routine, is preferably unsaturated polyester resin.Described vibrin is generally the chain macromolecule compound with ester bond and unsaturated double-bond being formed by unsaturated dibasic acid dibasic alcohol or the unsaturated dibasic alcohol polycondensation of monounsaturated dicarboxylic acid.Described unsaturated polyester resin is preferably one or more in O-phthalic acid type (being called for short adjacent benzene type) unsaturated polyester resin, m-phthalic acid type (abbreviation metaphenylene) unsaturated polyester resin, Bisphenol a unsaturated polyester resin, vinyl ester type unsaturated polyester resin and halo unsaturated polyester resin.Wherein, described O-phthalic acid type (being called for short adjacent benzene type) unsaturated polyester resin is preferably one or more in 191DC# vibrin, 191DA# vibrin and 196# vibrin; Described m-phthalic acid type (abbreviation metaphenylene) unsaturated polyester resin is preferably 199# vibrin; Described Bisphenol a unsaturated polyester resin is preferably one or more in 197 vibrin, 3301 vibrin and 323 vibrin.The addition of described vibrin is preferably 38%-42%, and described per-cent is the mass percent that accounts for dusty spray.
In the present invention, described " epoxy resin " refer to any there are at least two can be by the organic compound of the oxyethane type functional group of ring-opening polymerization." epoxy resin " represents any conventional epoxy resin that is liquid at room temperature (23 ℃) or higher temperature.Described epoxy resin is preferably Resorcinol diglycidyl ether, dihydroxyphenyl propane diglycidyl ether, triglycidyl group-p-amino-phenol, bromo Bisphenol F diglycidyl ether, the triglycidyl group ether of m-amino-phenol, four glycidyl group methylene dianiline (MDA), the triglycidyl group ether of (trihydroxy--phenyl) methane, the poly epihydric alcohol base ether of P-F lacquer resin, one or more in the poly epihydric alcohol base ether of ortho-cresol lacquer resin and the four glycidyl group ether of tetraphenyl ethane.The addition of described epoxy resin is preferably 38%-42%, and described per-cent is the mass percent that accounts for dusty spray.
In the present invention, described growth agent is strengthened the charging property of powder, growth agent under this certain content condition, collaborative with all the other each components, improved the electrostatic shielding phenomenon of inner corner trim part, made the charging property of powder when injection and land workpiece surface stronger, adsorptive power is strengthened, bonding force is more firm, has avoided the blocked up phenomenon of spraying for dusting and cause in a large number.Described growth agent is the growth agent of this area routine, is preferably quaternary ammonium salt growth agent, is more preferably the lipid acid quarternary ammonium salt of polyester modification.The addition of described growth agent is preferably 0.4%-0.6%, and described per-cent is the mass percent that accounts for dusty spray.
In the present invention, described flowing agent claims again flow agent, the flowing agent of certain content, make powder after spraying completes hot setting during, powder flowbility increases greatly, the performance mobile to inner corner trim increases substantially.Described flowing agent is the flowing agent of this area routine, is preferably acrylic ester polymer, is more preferably silicone-modified acrylic ester polymer.The addition of described flow agent is preferably 1.5%-1.7%, and described per-cent is the mass percent that accounts for dusty spray.
In the present invention, described loose fluffy powder claims again leavening agent.Certain content loose fluffy powder improved the conglomeration of powder before there is no spraying and the suppleness of powder, powder loose performance when not using is improved, be beneficial to spraying and the preservation of powder; After powder spraying, curing, strengthen the snappiness of powder, the physical impact performance after once spraying with secondary, avoids cracking and obscission simultaneously; The powder utilization that has strengthened powder, has reduced coating thickness.Described loose fluffy powder is the loose fluffy powder of this area routine, is preferably NaHCO
3and/or NH
4hCO
3.The addition of described loose fluffy powder is preferably 0.5%-1%, and described per-cent is the mass percent that accounts for dusty spray.
In the present invention, described filler is this area conventional fillers, is preferably mineral filler, is more preferably one or more in titanium dioxide, barium sulfate, silica powder and calcium carbonate.The addition of described filler is surplus, is preferably 10%-30%, and described per-cent is the mass percent that accounts for dusty spray.
In the present invention, described dusty spray preferably also comprises curing catalyst, described curing catalyst is the curing catalyst of this area routine, is preferably one or more in trolamine (TEOA), triethylamine (TEA), anilino formylimidazoles, trimethylammonium two guanidines, isocyanuric acid three-glycidyl ester, N-ethyl-N-Racemic glycidol aniline, N-ethyl-N-Racemic glycidol Ortho Toluidine, tetraethylammonium bromide and thiocarbamide (TU).The addition of described curing catalyst is the conventional addition in this area, is preferably 1%-3%, and described per-cent is the mass percent that accounts for dusty spray.
In the present invention, described dusty spray preferably also comprises st-yrax.Described benzoic addition is preferably 0.1%-0.5%, and described per-cent is the mass percent that accounts for dusty spray.
In the present invention, described dusty spray preferably also comprises pigment.Described pigment is preferably that iron oxide black, carbon black, chrome yellow, iron oxide red, titanium are blue, titanium is blue or green, ultramarine or titanium green.The addition of described pigment is preferably 10%-18%, and described per-cent is the mass percent that accounts for dusty spray.
Two of object of the present invention is, a kind of preparation method of the dusty spray for Household steam hair device is provided, and described preparation method comprises the following steps:
(1) each composition as above is mixed, under 135-155 ℃ of condition, extrude, compressing tablet, obtain sheet stock;
(2) described sheet stock is pulverized, through cyclonic separation, is made the powder that particle diameter is 10-80 μ m.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can arbitrary combination, obtains the preferred embodiments of the invention.
Agents useful for same of the present invention and raw material be commercially available obtaining all.
Positive progressive effect of the present invention is: dusty spray of the present invention by improving of composition and content thereof the mobility of powder, free-running property and physical impact performance, improved the powder utilization of powder, reduced coating thickness.
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.The experimental technique of unreceipted actual conditions in the following example, according to ordinary method and condition, or selects according to catalogue.
Composition and the content thereof of the dusty spray for family's electrical evaporator of embodiment 1-5 and comparative example 1-3 are as shown in table 1.
Composition and the content thereof of the dusty spray for family's electrical evaporator of table 1 embodiment 1-8
Comparative example 1
Vibrin addition is 50%, and filler is supplied surplus, and all the other are with embodiment 1.
Comparative example 2
Growth agent addition is 1.5%, reduces the consumption of filler, and all the other are with embodiment 1.
Comparative example 3
The addition 3% of flowing agent, the consumption of minimizing filler, all the other are with embodiment 1.
The preparation method of the dusty spray for Household steam hair device of embodiment 1-8 and comparative example 1-3 comprises the following steps:
(1) each composition is mixed, under 140 ℃ of conditions, extrude, compressing tablet;
(2) sheet stock obtaining is pulverized, through cyclonic separation, made the powder that particle diameter is 60 μ m.
Effect embodiment 1
Performance Detection
Conventional according to this area, powder properties is detected, result is as shown in table 2
Table 2 performance test results
Effect embodiment 3
Conventional according to this area, the powder utilization of detection vaporizer, detected result is as shown in table 3.
Table 3 wire-and-tube evaporator and the powder utilization that propels the price of formula vaporizer
Embodiment 4
According to this area ordinary method, the product of embodiment 1-8 dusty spray and comparative example 1-3 is used for to wire-and-tube evaporator and the spraying that propels the price of formula vaporizer, after spraying, under 155 ℃ of conditions of temperature, carry out baking-curing 15min, obtain salable product and measure sprayed coating thickness, if obtain unacceptable product, repeat spraying, and baking-curing under the same terms, until qualified.The sprayed coating thickness that detects all salable product, result is as shown in table 4.
Table 4 wire-and-tube evaporator and the sprayed coating thickness that propels the price of formula vaporizer
As can be seen from the above table: the qualified product that obtain after dusty spray of the present invention spraying, its thickness is much smaller than the product of the powder spraying of the comparative example in protection domain of the present invention not.Dusty spray of the present invention has excellent effect.
Claims (10)
1. the dusty spray for family's electrical evaporator, it is characterized in that: described dusty spray comprises following composition: vibrin 35%-45%, epoxy resin 35%-45%, growth agent 0.2%-1%, flowing agent 1.2%-1.8%, loose fluffy powder 0.2%-1.1% and filler, described per-cent is the weight percent that accounts for dusty spray.
2. dusty spray as claimed in claim 1, is characterized in that: described vibrin is unsaturated polyester resin; Described unsaturated polyester resin is one or more in O-phthalic acid type unsaturated polyester resin, m-phthalic acid type unsaturated polyester resin, Bisphenol a unsaturated polyester resin, vinyl ester type unsaturated polyester resin and halo unsaturated polyester resin; The addition of described vibrin is preferably 38%-42%, and described per-cent is the mass percent that accounts for dusty spray.
3. dusty spray as claimed in claim 2, is characterized in that: described O-phthalic acid type unsaturated polyester resin is one or more in 191DC# vibrin, 191DA# vibrin and 196# vibrin; Described m-phthalic acid type unsaturated polyester resin is 199# vibrin; Described Bisphenol a unsaturated polyester resin is one or more in 197 vibrin, 3301 vibrin and 323 vibrin.
4. dusty spray as claimed in claim 1, it is characterized in that: described epoxy resin is Resorcinol diglycidyl ether, dihydroxyphenyl propane diglycidyl ether, triglycidyl group-p-amino-phenol, bromo Bisphenol F diglycidyl ether, the triglycidyl group ether of m-amino-phenol, four glycidyl group methylene dianiline (MDA), the triglycidyl group ether of (trihydroxy--phenyl) methane, the poly epihydric alcohol base ether of P-F lacquer resin, one or more in the poly epihydric alcohol base ether of ortho-cresol lacquer resin and the four glycidyl group ether of tetraphenyl ethane, the addition of described epoxy resin is 38%-42%, and described per-cent is the mass percent that accounts for dusty spray.
5. dusty spray as claimed in claim 1, is characterized in that: described growth agent is quaternary ammonium salt growth agent; The addition of described growth agent is 0.4%-0.6%;
Described flowing agent is acrylic ester polymer; The addition of described flow agent is preferably 1.5%-1.7%;
Described loose fluffy powder is NaHCO
3and/or NH
4hCO
3; The addition of described loose fluffy powder is preferably 0.5%-1%;
Described filler is mineral filler; Described mineral filler is one or more in titanium dioxide, barium sulfate, silica powder and calcium carbonate; The addition of described filler is 10%-30%;
Described per-cent is the mass percent that accounts for dusty spray.
6. the dusty spray as described in any one in claim 1-5, is characterized in that: described dusty spray also comprises one or more in curing catalyst, st-yrax and pigment.
7. dusty spray as claimed in claim 6, is characterized in that: described curing catalyst is one or more in trolamine, triethylamine, anilino formylimidazoles, trimethylammonium two guanidines, isocyanuric acid three-glycidyl ester, N-ethyl-N-Racemic glycidol aniline, N-ethyl-N-Racemic glycidol Ortho Toluidine, tetraethylammonium bromide and thiocarbamide; The addition of described curing catalyst is 1%-3%, and described per-cent is the mass percent that accounts for dusty spray.
8. dusty spray as claimed in claim 6, is characterized in that: described benzoic addition is 0.1%-0.5%, and described per-cent is the mass percent that accounts for dusty spray.
9. dusty spray as claimed in claim 6, is characterized in that: described pigment for iron oxide black, carbon black, chrome yellow, iron oxide red, titanium indigo plant, titanium are blue or green, ultramarine or titanium green; The addition of described pigment is 10%-18%, and described per-cent is the mass percent that accounts for dusty spray.
10. the preparation method of dusty spray as claimed in any one of claims 1-9 wherein, it is characterized in that: described preparation method comprises the following steps: (1) mixes the composition of dusty spray as claimed in any one of claims 1-9 wherein, under 135-155 ℃ of condition, extrude, compressing tablet, obtain sheet stock; (2) described sheet stock is pulverized, through cyclonic separation, is made the powder that particle diameter is 10-80 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314861.7A CN104087135A (en) | 2014-07-04 | 2014-07-04 | Spraying powder used for household appliance evaporator and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410314861.7A CN104087135A (en) | 2014-07-04 | 2014-07-04 | Spraying powder used for household appliance evaporator and preparation method thereof |
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| CN104087135A true CN104087135A (en) | 2014-10-08 |
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ID=51634902
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|---|---|---|---|
| CN201410314861.7A Pending CN104087135A (en) | 2014-07-04 | 2014-07-04 | Spraying powder used for household appliance evaporator and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104559693A (en) * | 2014-12-31 | 2015-04-29 | 天津盛达粉末涂料有限公司 | Powder coating for electrical oil heater |
| CN104877531A (en) * | 2015-06-12 | 2015-09-02 | 江永波 | Method for producing powder coating by using unsaturated polyester paint waste |
| ES2563903A1 (en) * | 2015-08-31 | 2016-03-16 | Avanzare Innovación Tecnológica S.L. | Two-component antistatic formulation for unsaturated polyester and epoxyvinyl ester resins (Machine-translation by Google Translate, not legally binding) |
| CN107586505A (en) * | 2017-10-26 | 2018-01-16 | 浙江华彩新材料有限公司 | A kind of voluminous powder coating and preparation method thereof |
| CN108300159A (en) * | 2017-10-25 | 2018-07-20 | 浙江星丰科技有限公司 | A kind of preparation method of anticorrosion direct-buried thermal insulation pipe |
| CN108300121A (en) * | 2016-08-25 | 2018-07-20 | 镇江市美鑫塑料粉末有限公司 | Heat dissipation dusty spray for household electrical appliance |
| CN112341908A (en) * | 2020-11-27 | 2021-02-09 | 海隆石油产品技术服务（上海）有限公司 | High-wear-resistance powder coating for gas well oil pipe |
| CN116162395A (en) * | 2022-12-09 | 2023-05-26 | 江南载福粉末涂料（张家港）有限公司 | Low-light powder coating and preparation method and application thereof |
| CN116218380A (en) * | 2023-04-07 | 2023-06-06 | 遵义春华新材料科技有限公司 | Powder coating and preparation method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104559693A (en) * | 2014-12-31 | 2015-04-29 | 天津盛达粉末涂料有限公司 | Powder coating for electrical oil heater |
| CN104877531A (en) * | 2015-06-12 | 2015-09-02 | 江永波 | Method for producing powder coating by using unsaturated polyester paint waste |
| US10934416B2 (en) | 2015-08-31 | 2021-03-02 | Avanzare Innovacion Tecnologica S.L. | Anti-static bicomponent formulation for unsaturated polyester resins and epoxy vinyl ester resins |
| WO2017037317A1 (en) * | 2015-08-31 | 2017-03-09 | Avanzare Innovacion Tecnologica S.L. | Anti-static bicomponent formulation for unsaturated polyester resins and epoxy vinyl ester resins |
| CN107922719A (en) * | 2015-08-31 | 2018-04-17 | 阿万扎雷创新科技有限公司 | For unsaturated polyester resin and the antistatic bicomponent agent of epoxy vinyl ester resin |
| ES2563903A1 (en) * | 2015-08-31 | 2016-03-16 | Avanzare Innovación Tecnológica S.L. | Two-component antistatic formulation for unsaturated polyester and epoxyvinyl ester resins (Machine-translation by Google Translate, not legally binding) |
| CN107922719B (en) * | 2015-08-31 | 2022-02-08 | 阿万扎雷创新科技有限公司 | Antistatic two-component formulation for unsaturated polyester resins and epoxy vinyl ester resins |
| CN108300121A (en) * | 2016-08-25 | 2018-07-20 | 镇江市美鑫塑料粉末有限公司 | Heat dissipation dusty spray for household electrical appliance |
| CN108300159A (en) * | 2017-10-25 | 2018-07-20 | 浙江星丰科技有限公司 | A kind of preparation method of anticorrosion direct-buried thermal insulation pipe |
| CN107586505A (en) * | 2017-10-26 | 2018-01-16 | 浙江华彩新材料有限公司 | A kind of voluminous powder coating and preparation method thereof |
| CN112341908A (en) * | 2020-11-27 | 2021-02-09 | 海隆石油产品技术服务（上海）有限公司 | High-wear-resistance powder coating for gas well oil pipe |
| CN112341908B (en) * | 2020-11-27 | 2022-03-22 | 海隆石油产品技术服务（上海）有限公司 | High-wear-resistance powder coating for gas well oil pipe |
| CN116162395A (en) * | 2022-12-09 | 2023-05-26 | 江南载福粉末涂料（张家港）有限公司 | Low-light powder coating and preparation method and application thereof |
| CN116218380A (en) * | 2023-04-07 | 2023-06-06 | 遵义春华新材料科技有限公司 | Powder coating and preparation method thereof |
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Application publication date: 20141008 |